Tuesday August 28, 2007

Lecturer: Dr. Zhili Sun

University of Surrey, Guildford, UK
e-mail: Z.Sun@surrey.ac.uk

Title: Satellite Networking & Time Series Analysis

Abstract: This lecture aims to cover the fundamental concepts of satellite networking including satellite services and network services, circuit and packet switching, network protocols and reference models, Internet services and applications, internetworking between satellite and terrestrial networks, and convergence of network technologies and protocols. It also covers main techniques for Time Series Analysis including identify patterns in time series data, general class of model for time series data presentations and predictions, and some simple and commonly used modelling and forecasting techniques based on linear regression.

1. Satellite networking

• Applications and services of satellite networks
• ITU-R definitions of satellite services
• ITU-T definitions of network services
• Internet services and applications
• Internet protocols reference model
• Satellite network
• Characteristics of satellite networks
• Internetworking with terrestrial networks
• Network traffic, QoS and performance issues
• Network resource management
• Internet protocols
• IP packet encapsulation
• Internet quality of service (IP QoS)
• Integrated services (Intserv) architectures for QoS
• Differentiated services (Diffserv) for QoS

2. Time Series Analysis

• General Introduction
• Two Main Goals
• Identifying Patterns in Time Series Data
• Systematic pattern and random noise
• Two general aspects of time series patterns
• Trend Analysis
• Analysis of Seasonality

3. ARIMA and Autocorrelations

• General Introduction
• Two Common Processes
• ARIMA Methodology
• Identification Phase
• Parameter Estimation
• Evaluation of the Model

4. Interrupted Time Series

5. Exponential Smoothing

• General Introduction
• Simple Exponential Smoothing
• Choosing the Best Value for Parameter a (alpha)
• Indices of Lack of Fit (Error)
• Seasonal and Non-seasonal Models With or Without Trend

6. Distributed Lags Analysis

• General Purpose
• General Model
• Almon Distributed Lag

7. Cross-spectrum Analysis

• General Introduction
• Basic Notation and Principles
• Results for Each Variable
• The Cross-periodogram, Cross-density, Quadrature-density, and Cross-amplitude
• Squared Coherency, Gain, and Phase Shift
• How the Example Data were Created

8. Spectrum Analysis - Basic Notations and Principles

• Frequency and Period
• The General Structural Model
• A Simple Example
• Periodogram
• The Problem of Leakage
• Padding the Time Series
• Tapering
• Data Windows and Spectral Density Estimates
• Preparing the Data for Analysis

9. Results when no Periodicity in the Series Exists

10. Test

Lecturer’s Short Bio

Professor Zhili Sun has been work in the area of satellite networking since 1993. He got his BSc in Mathematics from Nanjing University in 1982, and PhD in Computer Science from Lancaster University in 1990. He worked as a postdoctoral research fellow in Queen Mary University of London from 1989 to 1993. He has been a principal investigator and technical co-ordinator in many European projects including the ESPRIT BISANTE project on evaluation of broadband traffic over satellite using simulation approach, VIP-TEN project on Quality of Service (QoS) of IP telephony over satellite, EU 5th and 6th Framework Programme GEOCAST project on IP Multicast over satellites, ICEBERGS project on IP based Multimedia Conference over Satellite, SatLife project on IP over DVB-S/RCS, SATSIX project on IPv6 over satellite, Euro-NGI project on next generation Internet. He has also been a principal investigator in UK EPSRC, European Space Agency (ESA) and industrial projects on IP multicast security. He has supervised many PhDs and research fellows. He published a book titled "satellite networking" by Wiley and over 120 papers in International journals, book chapters and conferences. He has also been a member of technical committee of international conferences and member of reviewers of major EU and UK research proposals. He has acted as external examiner for PhD viva in many universities in UK, France, Spain, Singapore and China. He also teaches MSc, undergraduate and industrial courses on satellite networking, computer and data networks, Internet traffic engineering and mobile operating systems.

Please visit: http://www.ee.surrey.ac.uk/CCSR/people/networks/academics.html